Filter



(No Model.) n

' B. HOLLAND, J1.

FILTER. No. 300,367. Patented Junev 17, 1884.

UNITED STATES PATENT trice,

BENJAMIN HOLLAND, JR., Ol'14 PROVIDENCE, RHODE ISLAND, ASSIGNOR OFONE-HALF TO THOB'IAS S. NOVELL, OF BOSTON, MASSACHUSETTS.

FiLTER.

SPECIFICATION forming part of Letters Patent No. 300,367, dated June 17,1884.

Application filed July 1G, 1883.

(No model.)

l end of the shell A. Y A thick piece of felt 5o such as that hereinemployed is most efficacious as a filtering substance, and acts to Stateof Rhode Island, have invented an lm- 5 provenient in Filters, of' Whichthe following i description, in connection with the accompanyingdrawing, is a specification, like letters on the drawing representinglike parts.

The object of this invention is the produc [o tion of a simple,serviceable, and efficacious filter, adapted to be readily applied to afaucet or pipe from which ivatcr issues which it is desired to strain orpurify.

)Iy improved filter consists, essentially, of

i5 a metal shell having an internal foraminous shelf cast therewith, soas to form chambers above and below the said shelf, a cover or capscrewthreaded to engage a screwthread on the shell to connect the two,and a disk of 2o felt or textile filtering substance placed on the shelfand held in place by the said cap or cover screwed down upon it, allashereinai'ter particularly described and claimed.

lThc drawing represents in vertical section a filter embodying myinvention.

In thcsaid drawing, A represents a cast-nietal shell, having an outlet,B, and provided at its upper end with a screw-thread, C. The shell A hasa foraminous shelf, D, cast with 3o and forming an integral part of thesame. To

form this shelf by casting, the mold will contain cores of' suitableshape to enable the production of' chambers above and below the shell.The shelf D, being cast with part ofthe shell A, greatly stiffens thesame, and makes a more solid, compact, and firm filter than were theshelf composed of wire gauze or other reticulated material supportedupon a shoulder or seat made within the shelf, and,

4o being made integral with the shell, the cost of the filter is therebyreduced, and all liability ot' losing the shelf or of' bending the sameinj uriously or accidentally into one or the other ofthe chambers of theshell is avoided. "he

filtering substance employed is a piece of felt cloth, l5, of a shapeexternally to just iitv the interior of the shell A, and rest againstthe top of the shelf coveringits holes 2,Which are formed by drillingthe shelf through from the large t through it.

thoroughly strain and remove foreign particles from the water or otherliquid passing The sediment and foreign particles arrested and collectedin the chamber about the shelf' and at the upper side of the felt maybereadily washed out and the felt cleansed by occasionally reversing thefelt. The' upper end of the shell A is closed by a cap or cover, Gr,screw-threaded at c to engage the screw-thread C of the shell, and alsothreaded at I) to engage suitable screw-threads of the bib,vfaucet, orpipe with which the filter is to bc connected. This cap has a iiange, c,to cooperate with a packing, e, interposed between it and the end of'the shell A, and a second flange, f, to receive upon it a packing, g, toabut-'against the end of the bib, faucet, or pipe. cap or cover isextended into the shell A far enough to act upon and hold the felt orfiltering material E down closely upon the shelf'.

Instead of felt, I might employ other thick textile fabric. The cap orcover G, circular externally, has a hole, a', to receive the prong of asuitable Spanner, by which to turn the lter upon the bib, faucet, orpipe.

l claim- Tlie combination and arrangement, substantially as shown anddescribed, in a filter, of the shell A, having the internal forami` nousshelf, D,cast tlicrewitli,and forming chambers above and belovr theshelf, the attaching cap or cover G, screwthreaded to engage an internalscrew-thread in the shell to connect the two, and the disk of felt ortextile filtering substance E, supported by the said shelf, and held inplace by the said cap or cover screwed down upon it, as set forth.

In testimony Whereofl have signed my name to this specification in thepresence of two subscribing Witnesses.

BENJAMIN HOLLAND, Jn.

`Witnesses XV. H. Sres'ron, G. YV. GREGORY.

The screw-threaded fiange of the c

